.main {
    width: 100%;
    background-color: red;
}

.main .layui-nav-side {
    padding-top: 5px;
    top: 43px;
    background-color: #f7f8f9 !important;
}

.main .layui-nav-tree .layui-nav-child dd.layui-this,
.layui-nav-tree .layui-nav-child dd.layui-this a,
.layui-nav-tree .layui-this,
.layui-nav-tree .layui-this>a,
.layui-nav-tree .layui-this>a:hover {
    background-color: #0fffff!important;
    color: #1890ff;
    border-left: 1px solid #1890ff;
}

.main .layui-side .layui-nav-tree {
    color: #000;
    background-color: #fff;
}

.main .layui-side .layui-nav-tree .layui-nav-item :hover {
    color: #1890ff;
}

.main .layui-side .layui-nav-tree .layui-nav-itemed>a,
.layui-nav-tree .layui-nav-title a,
.layui-nav-tree .layui-nav-title a:hover {
    color: #000!important;
}

.main .layui-side .layui-nav-itemed>.layui-nav-child {
    background-color: #fff!important;
}

.main .layui-side .layui-nav-itemed>.layui-nav-child dd a:hover {
    color: #1890ff;
}

.main .layui-bg-black,
.layui-side .layui-nav-tree li a,
dd span {
    color: #000;
}

.main .content {
    top: 60px;
    min-height: 650px;
    padding-left: 200px;
    padding-top: 5px;
}

.main .content iframe {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 645px;
}